Switch.



` w. w. DEAN..

SWITCH, APPLICATION F ILED` NOV. 7.1913.V

l ,266,420. Ptented vMay 14, i918.

m; MZ @f *WM/@f 'WILLIAM W. BEAN, GF CHlCAQO,-ILLINS, SSGNSR, BY lli/ESNE ASSIIGN'MENTS, T0, A* BENJAMIN' ELECTRIC MANUFAGTURNG CMPANY, 0F CHICAG, ILLNOIS, A COR'' PORA'IION OF ILLENQIS.

essenze.

SWITCH.

Specification of Letters Iatent.

Application lei November 7, i913. Serial No. 'itlili To all whom t may concern;

Be 'it known that l, lViLLmM lill. Denny Illinois, have invented new end useful inf proveniente in. Switches, of which the iollowing is o iiill5 clear, concise, and eXeot description, reference being" hed to the aecompanying drawing', forming zi part of this specification.

My invention relates to improvements in switches Apfirtioulsirly adopted for controlu ling the circuits of electric horns. or alarms for motorcycles, cycle cars and the like. Theseswitches are commonly mounted on the handle bars of the motorcycle end :is ordinarily Constructed comprise e. push-button mounted on e bese of considerable sise9 sind due to the si of this bese it lies been practically impossible gettlie button sulb oieiitly neer or olose to the hond-hold et the handle bars to enable the operator to push the button and, et 1he seinek time retain natural and lirin'grip the hand-l Dueto the feet that not only is the steering of e motoreyele done from the handle bers but thev engine controlled therefrom, it is necessary, in order to avoid dangerous eccidents, that a switch be provided which may be readily operated Without the necessity of releasing the firm grip on the hand-hold.

@ne oil the objects oi my invention is to provide :t siifitcli mechanism the operating member of which 'will proj ect over the liendhold oi" the handle bar and lie iii a position to be depi'e by a. naturel nioven'ient of the driifers thi 1 without the neeessity ot the driver releosi his grip. its queries, the :ilei'ni may be given initiireliv and without in ;y way nil sting the us and naturel steering end control oi." motorcycle.

For the purpose of disclosing my inven tion I have illustrated in the eocoinpiinyi-ng drawings onevpreierred embodiment there4 of. In seid drawings- Figure l is e side elevation of a portion of the handle bei' of a motoroyole showing my switch attached; y

Fig. 2 is a longitudinal sectional view of my switch showing the details of consti-no tion thereof.;

Fig. 3 is :i sectional View teken on the line 3 3 of Fig. l;

C Oli SCM f Fie". i.' and l 3 3 n o is e detail suitable materiel having its front end the bottoni. thereof :i pair of clamping straps' 8, These straps are preferably secured to EEzitented Moy 1d, 1918. i

. 4C is e sectional vieW'taken on the line s in the embodiment illustrated, l provide e bese 6, which is preferably formed ofbress, nickel-plated if desired, or any other ,l

5 of one of the contacts of the bose by rivets 9 passing through the bese and the top of the straps, and the lower free ends of the straps ere adapted to be drawn together by means of suitable screws 10.',y

rlhese straps surround one of the handle bars of the motorcycle and securely clamp the switch iii position. Mounted on the upper side oi: the bese 6 is :in insulating plete` i, 1

'my be formed, of White-horn fiber f their suitable material, end lying on t il, which or any o this in 1iaith/ig material is e.l contact spring i spring eonsists oi' :i dat strip of instei sprung up et its forward end and haring its for-Werd end turned up, as at 13, ivliieli ond is preferably serrated at its edge to forni suitable Contact points 14. Lying above the Contact spring l2 is a second conv tact spring i5, which is seperated from the spring l2 by e suitable spacer member 16 of white-horn liber or other suitable materiel.

The oriverd end of this spring is sprung up i 'iiitiibly seperated .sind insulated spring' 15 by :i strip of insulating i 'il niiited that the end of und the end ofthe strip 18 "e riloturned projection 7 of f when thespring erin 17 is dein-o s., even though it moves into engagement with the projection 7 on the base, the Contact spring l5 will make engagement with the contacts i4. The rear ends of the Contact springs l2 end l5 are each provided with rearwardly extending ears 19 having suitable notches therein in which the con ducting Wires may be looped and secured. The springs, spacer members and depresser erin i'? are iii clamped in position upon the by 'ineens of e, brass demping plete 20 which is secan i over the top oit the roer end oi spring erm 3.7 and secured in position nient with the contacts byev springA by means of suitable screws 21 which pass downthrough the various members heretofore described and engage in the base 6.

The various members are provided with openings through which the screws pass, and these screws are surrounded by insulating bushings 22 which thoroughly insulate the same from the springs 12 and 15. The arm 17 is provided with a laterally y extending projection or thumb piece 23 and the switch parts are inclosed by a suitable sheetmetal or drawn brass cover 24 which lits over and extends down on each side of the base, beingprovided at its forward end with a slot 25 \through which the extension 23 of the arm I 17 may project, and being provided at its rear end with a tubular extension 26 through which pass the conductor wires. This cover is held in position by a single screw 27 which passes through the same and into the clamping plate 20. It Will be noted that this will clear the hand-hold 27. There is suiicient clearance between the thumb piece and the grip so that the thumb piece may be readily depressed for closing the circuit.

i By the above construction I provide a switch for'controlling the circuit of the horn or signal which is provided with a laterally projecting handle or thumb piece lying above the hand grip of the'ysteering device and in a position .to be readily operatedrrby the andate@ 'thumb of the operator without releasing his hold upon the and grip.

Havmg thus described my invention, what i claim ,as new and desire to' secure by Let'- ters Patent, is

A switch for mounting upon the handle bars of a motorcycle comprising an elongated base, a air of clamping members secured to said ase for securing the base in position upon the handle bar, a contact spring mounted upon and insulated from said base having its free end upturned to form a contact, an insulating spacing member mounted at the rear end of said spring, a second contact spring mounted upon said insulating spacing member and having its free end adapted to engage the contacts of said first contact spring, a spring arm also mounted upon said spacing member above said second spring and adapted to depress the free end of said spring for closing the contacts, an insulating strip between said spring arm and the movable spring contact,

a clamping member above the rear end of 4 said spring arm, screws passing through said clamping member, throu h said spring arm springs and spacing membTer and adapted to engage in said base for securing the parts together, and a casing inclosing the parts of the switch having its sidesv embracing the sides of the base and secured in Iposition by a screw passing therethrough and into said clamping plate, said spring arm having an operating handle projecting longitudinally beyond said casing.l

In Witness whereof, I hay@ hereunto subscribed my name in the presence of two witnesses. v

l WILLIAM W. DEAN; Witnesses:

W. PERRY I-IA-HN, ANNE SOLOMON. 

